Signal sending method, network equipment and terminal equipment

Abstract

Provided are a signal sending method, a network device and a terminal device, which relate to the field of communications and can solve the problem of how to send a signal by a network device to enable a terminal device to access a system supporting multiple subcarrier intervals. The method comprises the following steps: preparing raw materials; the network equipment determines a subcarrier position of a first signal to be sent and a subcarrier position of a second signal to be sent, wherein the subcarrier occupied by the first signal is a continuous subcarrier in the first group of resource elements; wherein the subcarriers occupied by the second signal are continuous subcarriers in the second group of resource elements, the number of the subcarriers occupied by the first signal is the same as the number of the subcarriers occupied by the second signal, and the subcarrier interval in the first group of resource elements is different from the subcarrier interval in the second group ofresource elements; and the network equipment sends the first signal at the determined subcarrier position of the first signal and sends the second signal at the determined subcarrier position of the second signal. The embodiments of the present invention are used for a terminal device to perform cell search to access a cell.

Description

technical field [0001] The present invention relates to the communication field, in particular to a signal sending method, network equipment and terminal equipment. Background technique [0002] In traditional digital signal transmission, the information flow is transmitted through one channel at a time, which belongs to the serial transmission method. The multi-carrier technology adopts the parallel transmission method, which converts the serial high-speed information flow into parallel and divides it into multiple parallel low-speed information flows, and then superimposes and transmits the multiple parallel low-speed information flows to form a multi-carrier The transmission system, that is, the multi-carrier technology is a technology that uses multiple carriers to transmit high-speed data information. Among them, the carrier is the radio wave of a specific frequency carrying data. [0003] Multi-carrier transmission technology has been widely used in communication sys...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a signal transmission method, network equipment, and terminal equipment, which can solve the problem of how the network equipment sends signals so that the terminal equipment can access a system that supports multiple subcarrier spacings

In this way, when the first signal and the second signal can be used for time-frequency synchronization or cell search, the terminal device can obtain relevant information for accessing the cell, so as to support the terminal device to access cells with different subcarrier spacing or use subcarrier spacing Different time-frequency resources communicate with network devices, which can solve the problem of how network devices send signals so that terminal devices can access systems that support multiple subcarrier spacings

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